Live midterm results: Senate races

The 2018 Senate map was much more favorable to Republicans, who needed to defend only nine seats, compared with Democrats’ 26. Ten Democrats sought reelection in states President Trump won. Republicans were favored to control the chamber and possibly grow their 51-to-49 majority.

To retake the chamber, Democrats would have had to defend against formidable Republican challenges, win open seats in Arizona and Tennessee, oust a vulnerable Republican in Nevada and flip traditionally red Texas.

In internal communication filed as part of discovery for a California case over the citizenship census question, Trump administration officials suggested the possibility of “renewed debate” over protections that keep census answers confidential and sharing them with law enforcement and national security agencies. This is a developing story. It will be updated.